package com.aote.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.aote.constant.MessageConstant;
import com.aote.entity.Result;
import com.aote.service.MemberService;
import com.aote.service.ReportService;
import com.aote.service.SetmealService;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;
    @Reference
    private ReportService reportService;

//    会员数量折线图数据
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){

        Map<String,Object> map = new HashMap<String, Object>();
        List<String> months = new ArrayList<String>();

        Calendar calendar = Calendar.getInstance(); //获得日历对象，默认时间就是当前时间
//        计算过去一年十二个月
        calendar.add(Calendar.MONTH,-12);//获得当前时间往前推12
        for (int i = 0;i<12;i++){
            calendar.add(Calendar.MONTH,1);
            Date date = calendar.getTime();
            months.add(new SimpleDateFormat("yyyy.MM").format(date));
        }
        map.put("months",months);

        try {
            List<Integer> memberCount = memberService.findMemberCountByMonths(months);
            map.put("memberCount",memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
        } catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }
//    套餐预约占比饼形图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {
//        使用模拟数据测试使用什么样java对象转为饼形图所需json数据格式
        Map<String, Object> data = new HashMap<String, Object>();

//        List<String> setmealNames = new ArrayList<String>();
//        setmealNames.add("体检套餐");
//        setmealNames.add("孕前检查套餐");
//        data.put("setmealNames",setmealNames);
        try {
            List<Map<String, Object>> setmealCount = setmealService.findSetmealCount();

            data.put("setmealCount", setmealCount);

            List<String> setmealNames = new ArrayList<String>();
            for (Map<String, Object> map : setmealCount) {
//            套餐名称
                String name = (String) map.get("name");
                setmealNames.add(name);
            }
            data.put("setmealNames", setmealNames);
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

//    运营数据统计
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String,Object> data = reportService.getBusinessReportData();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,data);
        } catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }

    }
//    导出运营数据
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try {
            Map<String,Object> result = reportService.getBusinessReportData();
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

           String filePath = request.getSession().getServletContext().getRealPath("template")+ File.separator+"report_template.xlsx";
//            基于提供的模板文件在内存中创建一个Excel对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
//            读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);
//            获取第三行
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数


            int rowNum = 12;
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

//            使用输出流进行表格下载,基于浏览器作为客户端下载
            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel"); //代表excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx"); //指定以附件形式进行下载
            excel.write(out);
            out.flush();
            out.close();
            excel.close();

            return null;
        } catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
